From cac918bed02b2067288550a657aa9ab06c0fb2ea Mon Sep 17 00:00:00 2001
From: Michael Lotz <mmlr@mlotz.ch>
Date: Mon, 6 Jun 2011 22:47:22 +0000
Subject: [PATCH] Add devices we have explicit quirky device support for to the
 support descriptor. This allows us to support devices that aren't strictly
 HID or only provide vendor specific interfaces by constructing report
 descriptors for their data format.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41992 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 .../kernel/drivers/input/usb_hid/Driver.cpp   | 30 +++++++++++++++++--
 1 file changed, 27 insertions(+), 3 deletions(-)

diff --git a/src/add-ons/kernel/drivers/input/usb_hid/Driver.cpp b/src/add-ons/kernel/drivers/input/usb_hid/Driver.cpp
index 972ee31091..c2cc5b0b8d 100644
--- a/src/add-ons/kernel/drivers/input/usb_hid/Driver.cpp
+++ b/src/add-ons/kernel/drivers/input/usb_hid/Driver.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright 2008-2009 Michael Lotz <mmlr@mlotz.ch>
+ * Copyright 2008-2011 Michael Lotz <mmlr@mlotz.ch>
  * Distributed under the terms of the MIT license.
  */
 
@@ -11,6 +11,7 @@
 #include "Driver.h"
 #include "HIDDevice.h"
 #include "ProtocolHandler.h"
+#include "QuirkyDevices.h"
 
 #include <lock.h>
 #include <util/AutoLock.h>
@@ -31,6 +32,7 @@ usb_module_info *gUSBModule = NULL;
 DeviceList *gDeviceList = NULL;
 static int32 sParentCookie = 0;
 static mutex sDriverLock;
+static usb_support_descriptor *sSupportDescriptors;
 
 
 // #pragma mark - notify hooks
@@ -311,11 +313,31 @@ init_driver()
 		&usb_hid_device_removed
 	};
 
-	static usb_support_descriptor supportDescriptor = {
+	static usb_support_descriptor genericHIDSupportDescriptor = {
 		USB_INTERFACE_CLASS_HID, 0, 0, 0, 0
 	};
 
-	gUSBModule->register_driver(DRIVER_NAME, &supportDescriptor, 1, NULL);
+	int32 supportDescriptorCount = 1 + gQuirkyDeviceCount;
+	sSupportDescriptors
+		= new(std::nothrow) usb_support_descriptor[supportDescriptorCount];
+	if (sSupportDescriptors != NULL) {
+		sSupportDescriptors[0] = genericHIDSupportDescriptor;
+		for (int32 i = 0; i < gQuirkyDeviceCount; i++) {
+			sSupportDescriptors[i + 1].dev_class = 0;
+			sSupportDescriptors[i + 1].dev_subclass = 0;
+			sSupportDescriptors[i + 1].dev_protocol = 0;
+			sSupportDescriptors[i + 1].vendor = gQuirkyDevices[i].vendor_id;
+			sSupportDescriptors[i + 1].product = gQuirkyDevices[i].product_id;
+		}
+
+		gUSBModule->register_driver(DRIVER_NAME, sSupportDescriptors,
+			supportDescriptorCount, NULL);
+	} else {
+		// no memory for quirky devices, at least support proper HID
+		gUSBModule->register_driver(DRIVER_NAME, &genericHIDSupportDescriptor,
+			1, NULL);
+	}
+
 	gUSBModule->install_notify(DRIVER_NAME, &notifyHooks);
 	TRACE("init_driver() OK\n");
 	return B_OK;
@@ -328,6 +350,8 @@ uninit_driver()
 	TRACE("uninit_driver()\n");
 	gUSBModule->uninstall_notify(DRIVER_NAME);
 	put_module(B_USB_MODULE_NAME);
+	delete[] sSupportDescriptors;
+	sSupportDescriptors = NULL;
 	delete gDeviceList;
 	gDeviceList = NULL;
 	mutex_destroy(&sDriverLock);